<template>
  <div class="loginContainer">
    <div class="loginInner">
      <div class="login_header">
        <h2 class="login_logo">硅谷外卖</h2>
        <div class="login_header_title">
          <a href="javascript:;" :class="{on: loginWay}" @click="loginWay=true">短信登录</a>
          <a href="javascript:;" :class="{on: !loginWay}" @click="loginWay=false">密码登录</a>
        </div>
      </div>
      <div class="login_content">
        <form @submit.prevent="login">
          <div :class="{on: loginWay}">
            <section class="login_message">
              <input type="tel" maxlength="11" placeholder="手机号" v-model="phone">
              <button :disabled="!rightPhone" class="get_verification" :class="{right_phone: rightPhone}" @click.prevent="getCode">
                {{computedTime>0? `已发送(${computedTime}s)` : '获取验证码'}}
                </button>
            </section>
            <section class="login_verification">
              <input type="tel" maxlength="8" placeholder="验证码"  v-model="code">
            </section>
            <section class="login_hint">
              温馨提示：未注册硅谷外卖帐号的手机号，登录时将自动注册，且代表已同意
              <a href="javascript:;">《用户服务协议》</a>
            </section>
          </div>
          <div :class="{on: !loginWay}">
            <section>
              <section class="login_message">
                <input type="tel" maxlength="11" placeholder="手机/邮箱/用户名" v-model="name">
              </section>
              <section class="login_verification">
                <input type="text" maxlength="8" placeholder="密码" v-if="showPwd" v-model="pwd">
                <input type="password" maxlength="8" placeholder="密码" v-else v-model="pwd">
                <div class="switch_button off" :class="showPwd ? 'on' : 'off'" @click="showPwd=!showPwd">
                  <div class="switch_circle" :class="{right: showPwd}"></div>
                  <span class="switch_text">{{showPwd ?'abc' : '...'}}</span>
                </div>
              </section>
              <section class="login_message">
                <input type="text" maxlength="11" placeholder="验证码" v-model="captcha">
                <img class="get_verification" src="http://localhost:4000/captcha" alt="captcha" @click="getCaptcha" ref="captcha">
              </section>
            </section>
          </div>
          <button class="login_submit">登录</button>
        </form>
        <a href="javascript:;" class="about_us">关于我们</a>
      </div>
      <span href="javascript:" class="go_back" @click="$router.back()">
        <i class="iconfont icon-jiantou2"></i>
      </span>
    </div>
    <AlertTip :alertText="alertText" v-show="AlertShow" @closeTip="closeTip"></AlertTip>
  </div>
  
</template>

<script>
import AlertTip from '../../components/AlertTip/AlertTip.vue'
import {reqPwdLogin,reqSendCode,reqSmsLongin} from '../../api'
export default {
    data () {
      return {
        loginWay: true,
        computedTime: 0,
        phone: '',
        showPwd: false,
        code: '',
        pwd:'',
        name: '',
        captcha: '',
        alertText: '',
        AlertShow: false
      }
    },
    computed: {
      rightPhone () {
        return /^1\d{10}$/.test(this.phone)
      }
    },
    methods: {
      getCaptcha () {
        this.$refs.captcha.src = 'http://localhost:4000/captcha?time='+Date.now()
      },
      async getCode () {
        if(!this.computedTime) {
          this.computedTime = 60
          this.intervalId = setInterval(() => {
            this.computedTime--
            if(this.computedTime<=0) {
              clearInterval(this.intervalId)
            }
          },1000)
        }
        const result = await reqSendCode(this.phone)
        if(result.code===1) {
          this.showAlert(result.msg)
          if(this.computedTime) {
            this.computedTime = 0
            clearInterval(this.intervalId)
            this.intervalId = undefined
          }
        }
      },
      showAlert (alertText) {
        this.AlertShow = true
        this.alertText = alertText
      },
      async login () {
        let result
        if(this.loginWay) {
          const {rightPhone,phone,code} = this
          if(!this.rightPhone){
            this.showAlert('手机号不正确')
            return
          }else if(!/^\d{6}$/.test(code)) {
            this.showAlert('验证码必须是6位数字')
            return
          }
          result = await reqSmsLongin(phone,code)
          }else {
            const {name, pwd, captcha} = this
            if(!this.name) {
              this.showAlert('用户名必须指定')
              return
            }else if(!this.pwd) {
              this.showAlert('密码必须指定')
              return
            }else if (!this.captcha) {
              this.showAlert('验证码必须指定')
              return
            }
            result = await reqPwdLogin({name, pwd, captcha})
          }

           if(this.computedTime) {
            this.computedTime = 0
            clearInterval(this.intervalId)
            this.intervalId = undefined
          }

          if(result.code===0){
            const user = result.data
            this.$store.dispatch('recordUser',user)
            this.$router.replace('/profile')
          }else{
            const msg = result.msg
            this.getCaptcha()
            this.showAlert(msg)
          }
      },
      closeTip () {
        this.AlertShow = false
        this.alertText = ''
      },
    },
    components: {
      AlertTip
    }
}
</script>

<style lang="stylus" rel="stylesheet/stylus" scoped>
  @import "../../common/stylus/mixins.styl"
  .loginContainer
    width 100%
    height 100%
    background #fff
    .loginInner
      padding-top 60px
      width 80%
      margin 0 auto
      .login_header
        .login_logo
          font-size 40px
          font-weight bold
          color #02a774
          text-align center
        .login_header_title
          padding-top 40px
          text-align center
          >a
            color #333
            font-size 14px
            padding-bottom 4px
            &:first-child
              margin-right 40px
            &.on
              color #02a774
              font-weight 700
              border-bottom 2px solid #02a774
      .login_content
        >form
          >div
            display none
            &.on
              display block
            input
              width 100%
              height 100%
              padding-left 10px
              box-sizing border-box
              border 1px solid #ddd
              border-radius 4px
              outline 0
              font 400 14px Arial
              &:focus
                border 1px solid #02a774
            .login_message
              position relative
              margin-top 16px
              height 48px
              font-size 14px
              background #fff
              .get_verification
                position absolute
                top 50%
                right 10px
                transform translateY(-50%)
                border 0
                color #ccc
                font-size 14px
                background transparent
                &.right_phone
                  color black
            .login_verification
              position relative
              margin-top 16px
              height 48px
              font-size 14px
              background #fff
              .switch_button
                font-size 12px
                border 1px solid #ddd
                border-radius 8px
                transition background-color .3s,border-color .3s
                padding 0 6px
                width 30px
                height 16px
                line-height 16px
                color #fff
                position absolute
                top 50%
                right 10px
                transform translateY(-50%)
                &.off
                  background #fff
                  .switch_text
                    float right
                    margin-right 10px
                    color #ddd
                &.on
                  background #02a774
                >.switch_circle
                //transform translateX(27px)
                  position absolute
                  top -1px
                  left -1px
                  width 16px
                  height 16px
                  border 1px solid #ddd
                  border-radius 50%
                  background #fff
                  box-shadow 0 2px 4px 0 rgba(0,0,0,.1)
                  transition transform .3s
                  &.right
                    transform translateX(30px)
            .login_hint
              margin-top 12px
              color #999
              font-size 14px
              line-height 20px
              >a
                color #02a774
          .login_submit
            display block
            width 100%
            height 42px
            margin-top 30px
            border-radius 4px
            background #4cd96f
            color #fff
            text-align center
            font-size 16px
            line-height 42px
            border 0
        .about_us
          display block
          font-size 12px
          margin-top 20px
          text-align center
          color #999
      .go_back
        position absolute
        top 5px
        left 5px
        width 30px
        height 30px
        >.iconfont
          font-size 20px
          color #999
</style>